Sawing-machine.



} PATENTED DEC. 6, 1904.

N. BLAIR. 4 SAWING MACHINE.

APPLICATION FILED JUNE 27, 1903.

2 SHBETBSHEET 1.

w w Em N0 MODEL.

' Wm 1 L003 ea N0 MODEL.

PATENTED DEC. 6, 1904. N. BLAIR.

SAWING MACHINE.

APPLICIATION FILED JUNE 27, 1903.

2 SHEETS-SHEET 2.

S. Q N

SSDIJ g 3 UNITED STATES Patented December 6, 1904.

NATHAN BLAIR, OF BUELL, OREGON.

SAWlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 776,989, dated December6, 1904. Application filed June 27,1903. Serial No. 163,369. (No model.)

To all whom it may concern:

Be it known that I, NATHAN BLAIR, a citizen of the United States,residing at Buell, in the county of Polk and State of Oregon, haveinvented a new and useful Sawing-l\/[achine, of which the following is aspecification.

This invention relates to means for actuating one end of a drag orcrosscut saw, thus dispensing with the necessity of one of the twooperators usually employed.

The object is to provide a structure that can readily be applied to alog or timber to be cut and is easily adjustable to those of differentsizes, sothat the saw will be properly positioned with relation to itswork.

A further object is to provide mechanism that will permit the feed ofthe saw through the timber, so that said saw will operate withefliciency throughout its entire cut; and a still further object is toemploy an actuatingspring that will allow of said proper feed and can beadjusted to obtain any desired tension.

The structure which at present is considered preferable is illustratedin the accompanying drawings, wherein- Figure 1 is a perspective view ofthe machine in operative relation to a log. Fig. 2 is a horizontalsectional view through the machine. Fig. 3 is an end elevation of theupper end of the hanger-frame. Fig. 4: is a detail perspective view ofthe element employed at the connection between the sections of thehorizontal frame. Fig. 5 is a cross-sectional view taken on the line 5 5of Fig. 2. Fig. 6 is a detail sectional view taken on the line 6 6 ofFig. 2. Fig. 7 is a similar view taken on the line 7 7 of Fig. 2.

Similar reference-numerals indicate corresponding parts in all thefigures of the drawings.

In the embodiment illustrated a substantially horizontal frame isemployed, which is composed of two sections. One of these sectionscomprises spaced guideslO, secured together at one end by a clip 11 andhaving their opposite ends connected by an arch 12. The intermediateportions of these guides are curved, as illustrated in Fig. 1. The othersection consists of spaced bars 13, pivotally connected by bolts 14 withthe guides 10 and having an arch 15 on an intermediate portion thereof,which arch properly spaces the bars. A hanger-frame is secured to thishorizontal frame and is located above the guides. Said hanger-frameconsists of inclined bars 16, pivotally secured at their lower ends tothe outer ends of the guides, as shown at 17, and having their upperends spaced apart, said ends being connected by means of a bolt 18 withan adjusting-bar 19, the lower end of which is slotted, as shown at 20,and slides upon one of the bolts 14:, connecting the guides and bars 13,as illustrated in Fig. 5. The upper end of the bar 19 has a connectionin the form of a brace 21 with one of the bars 16. Between the upperends of the bars 16 and hung from the bolt 18 is a hanger-bar formed ofspaced members 22, that extend between the guides 10 and project somedistance be low the same. This hanger-bar is provided between its endswith outstanding cars 23, located on opposite sides of the guides, andin the cars is journaled an upright roller 2 1, located between theguides and coacting therewith. In practice it will be understood thatthis roller fits rather snugly between the guides and yet issuiliciently loose so that when it is bearing against one of said guidesit will be substantially free of the other. The lower end of thehanger-bar 22 is offset, as shown at 25, and to the same is pivoted alink 26, having an upwardly-curved portion 27, that is looped and passedbetween the members of said bar. The free end of the link carries spacedclevis members 28, adapted to embrace one end of a drag-saw, 29, beingclamped thereon by means of bolts 30.

The sections of the horizontal frame are normally held against theirpivotal movement, and to this end a member 31 is employed, which isillustrated in detail in Fig. 4:, said member comprising a strip 32,attached to one of the guides 10 and projecting beyond the same, saidprojecting end having an upstanding curved plate 33, that is locatedalongside one of thehorizontal bars 13. A bolt at is passed through theadjacent portion of said horizontal bar, and a clamping-nut 35, threadedupon the bolt, engages the curved plate 33, and thus holds the partsagainst I00 movement. This member is also provided with an outstandingclamp-plate 36, arranged in a substantiallyhorizontal plane and havingears 37 at its ends. A coiled actuating-spring 38 has its inner endresting upon this plate 36 and secured thereto by another clampingplate39, which plate is secured in place by bolts 40, passing through thesame and through the ears 37. These plates 36 and 39 constituteadjustable holding means for the spring.

The free or outer end of the spring 38 has secured thereto an upstandingarm 41, having'an enlarged upper end 42, in which is pivoted a link 43,the opposite end of the link being downturned and passing through an eye44, formed upon the hanger-bar 22 contiguous to itsupper end.

Suitable means are employed for properly positioning the mechanism withrelation to the work to be operated upon. In the present instance anadjustable support is shown in the form of an upright standard 45,having a transverse sleeper 46 at its lower end, provided with feet 47,said sleeper and standard being held against relative pivotal movementby a brace 48 connecting the two. The standard is provided with alongitudinal slot 49, and through the same is passed a bolt 50, that issecured to the clip 11, connecting the guides, said bolt having threadedthereon a clamping-nut 51, arranged to hold the hori- Zontal frameagainst movement with respect to the standard. The opposite end of saidframe is provided with means for attaching the same to a log or othertimber, so as to hold the mechanism against longitudinal movement. Thismeans is shown in the form of spuds 52, having offset cars 53, thatembrace the bars 13, certain of said ears having set-screws 54, thatengage the bars to hold the spuds in place. These spuds are adapted tobe driven into the log, as illustrated in Fig. 1, and support theadjacent ends of the bars a slight dis tance above the same. In order topermit this driving action, the upper ends of the spuds project abovethe upper ears and have heads 55, adapted to be struck with a hammer,ax, or other suitable tool. A saw-guide 56 is also preferably employedin connection with the end of the frame secured to the log. This guideconsists of a depending arm 57, having at its upper end offset shoulders58, that embrace one of the bars 13, the upper end being provided with aset-screw 59, passing therethrough and bearing against the upper edge ofthe bar 13, which carries the guide. This said guide, which isparticularly useful in connection with thin saw blades and in fellingtimber, lies alongside of the blade and serves to prevent the samewabbling.

In placing the apparatus in position the spuds are first driven into thelog, so that it will be on opposite sides of the cutting-line. The sawbeing placed between the bars will be on said line. The sections of thehorizontal frame are then adjusted to a suitable height, and the outerend of the frame is also propcrly adjusted. The sawer then grasping thehandled end of the saw operates the same in the usual manner. Power willtherefore be alternately stored in and transmitted from the spring, andconsequently the hanger-bar will be operated. The end of the sawattached to the mechanism will travel in its proper path because of theguiding of the hanger by the roller. As the saw descends during thecutting operation the attached end thereof will gradually feed downwardbecause of the sliding engagement between the bar 19 and the pivotbetween the sections of the horizontal frame. The result is that saidsaw will likewise maintain its proper position and the handle end willremain in convenient relation with respect to the operator. The tensionof the spring may be readily regulated by the clamp-bar, and because ofthe link connection between the arm 41 and the hanger-rod said springdoes not interfere with the feed of the saw.

From the foregoing it is thought that the construction, operation, andmany advantages of the herein-described invention will be ap-.

parent to those skilled in the art without further description, and itwill be understood that various changes in the size, shape, proportion,and minor details of construction may be resorted to without departingfrom the spirit or sacrificing any of the advantages of the invention.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a sawing-machine, the combination with spaced guides, of means foradjustably supporting the guides at one end, means for connecting theother ends of the guides with the timber to be cut, a hanger-frameadjustably supported upon the guides, a depending hanger hung from theframe and extending between the guides, said hanger comprising spacedmembers, an upper and alower ear attached to the hanger and extendingbetween the members thereof above and below the guides, and a rollerjournaled in the ears and located at one side of the hanger, said rollerhaving its opposite sides coacting with the guides.

2. In a sawing-machine, the combination with a supporting-frame, of ahanger-frame having a bar pivoted at one end to the supporting-frame andanother bar pivoted to the first-mentioned bar and engaging the frameand freely slidable thereon, said bars being spaced apart at theirpoints of connection with the frame, a hanger pivoted to the hangerframeand freely adjustable thereon, and a saw connected with the hanger, saidhanger automatically moving downward as the saw cuts through its work.

3. In a sawing-machine, the combination with a supporting-frameincluding spaced guides, of a hanger-frame including an inclined barpivoted to the supporting-frame at its lower end, an adjusting-barpivoted at its upper end to the supporting-frame and having its lowerend engaging the frame and freely slidable upon the same, a hanger swungfrom the hanger-frame, and a saw connected with the hanger, said hangerand frame automatically moving downwardly as the saw cuts through itswork.

4:. In a sawing-machine, the combination with a supporting-frameincluding spaced guides, of a standard for adjustably support ing oneend of said frame, means for connecting the other end of the frame tothe timber to be cut, a hanger-frame having a pivotal connection at oneend with the guides, and a freely-slidable connection at the other endwith said guides, a hanger swung from the frame and extending betweenthe guides, and a saw having a link connection with the hanger, saidhanger and frame automatically moving downwardly as the saw cuts throughits work.

5. In a sawing-machine, the combination with a substantially horizontalframe comprising spaced guides, of bars pivotally connected respectivelyto the corresponding ends of the guides, timber-engaging means carriedby the bars, means connecting the bars and guides to hold them againstpivotal movement, a vertically-adjustable hanger-frame mounted upon theguides and located above the same, a hanger-bar swung from the frame andextending between the guides, said bar being moved vertically upon theadjustment of the hanger-frame, and asaw-engaging link pivoted to thelower end of the hanger-bar.

6. In a sawing-machine, the combination with a substantially horizontalframe com prising spaced guides, of bars pivotally attached to theguides, an arch-piece located at said pivotal connection, a hanger-framepivoted upon the guides at one end and having a slidable connection withthe horizontal frame contiguous to the connection of the guides andbars, a hanger hung in the frame, and a saw-engaging link pivoted to thehanger.

7. In a sawing-machine, the combination with a supporting-framecomprising guides and spaced bars pivotally connected to thecorresponding ends of the guides, of means for preventing the pivotalmovement between the guides and bars, an adjustable support for the freeends of the guides, means for attaching the free ends of the bars to thetimber to be cut, a hanger-frame mounted on the supporting-frame, ahanger suspended from the hanger-frame, and a sa connected to thehanger, said hanger automatically moving downwardly as the saw cutsthrough its work.

8. In a sawing-machine, the combination with spaced guides, of spacedbars pivotally attached to the corresponding ends of the guides, an archconnecting the pivots, another arch connecting the bars, an adjustablesupport located at the free ends of the guides, timber-engaging jawslocated at the free ends of the bars, coacting devices carried by thepivoted ends of the bars and guides for holding said guides and barsagainst pivotal movement, and a saw movably supported upon the frame.

9. In a sawingmachine, the combination with a substantially horizontalframe comprising sections, of a pivotal connection between the sections,a member secured to one section contiguous to the pivotal connection andhaving a curved upright plate and asubstantially horizontal clamp'platc,a clamping-nut carried by the other section and engaging the uprightplate, a saw-actuating spring having one portion resting against theclamping-plate, and a clamping element coacting with said plate andextending across the spring.

10. In a sawing-machine, the combination with a substantially horizontalframe comprising spaced curved guides, of an adjustable support attachedto one end of tl 2 guides, horizontal bars pivotally secured to theother end of the guides, a hanger-frame mounted upon the horizontalframe and located above the same, a hanger-bar suspended from the hanger-frame and extending between the guides, a roller journaled upon the barand located between the guides, and a link attached to the lower end ofthe hanger-bar and having means for engaging the saw.

11. In a sawing-machine, the combination with a supportingframe havingspaced guides, of an adjustable support for one end of the frame,work-engaging means located at the other end of the frame, ahanger-frame adjustably mounted on the supporting-frame, a hanger swungthereupon and engaging between the guides, and a saw attached to thehanger, said hanger-frame and hanger automatically lowering upon thesupportingframe as the saw cuts through its work.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

NATHAN BLAIR.

Witnesses:

CHAnLns LAFoLLn'rT, Guns. Fox.

